Want to find another apple phone from my iPhone

You can also use Find My on your phone to start to help your friend. Go to the Me tab and touch on Help a Friend at the foot of the page.

This launches a page LD150 has linked into which your friend can enter their Apple ID to start Find My on a Safari web page.

If the phone is not under your apple ID then sign into THEIR Apple ID in a browser line Safari here

https://icloud.com/find

It will not need verification codes